FIELD: mining.
SUBSTANCE: invention relates to drilling research ships intended for drilling without risers. Fabricated-structure drilling research ship consists of two symmetric halves secured at drilling shaft hatch sliding bonnets. Every half extends from ship bottom. Note here that said halves are extended and lifted in vertical guides mounted at hatch bonnets with the help of hydraulic drives.
EFFECT: longer life of drilling pipes at boring deep-water wells.
2 cl, 3 dwg
| Title | Year | Author | Number |
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| DRILLING RESEARCH VESSEL | 2019 |
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| UNDERWATER DRILLING RIG AND SUPPORTING PLATFORM FOR IT | 1995 |
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| MARINE STATIONARY PLATFORM FOR CLUSTER DRILLING OF OIL-GAS WELLS IN SHELF AND METHOD OF INSTALLATION OF THIS PLATFORM AT POINT OF OPERATION | 1996 |
|
RU2096249C1 |
